Chilkat HOME Android™ Classic ASP C C++ C# Mono C# .NET Core C# C# UWP/WinRT DataFlex Delphi ActiveX Delphi DLL Visual FoxPro Java Lianja MFC Objective-C Perl PHP ActiveX PHP Extension PowerBuilder PowerShell PureBasic CkPython Chilkat2-Python Ruby SQL Server Swift 2 Swift 3,4,5... Tcl Unicode C Unicode C++ Visual Basic 6.0 VB.NET VB.NET UWP/WinRT VBScript Xojo Plugin Node.js Excel Go
(VB.NET UWP/WinRT) Check if File ExistsDemonstrates how to check to see if a file exists.
' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim sftp As New Chilkat.SFtp ' Connect to the SSH server. Dim hostname As String = "sftp.example.com" Dim port As Integer = 22 Dim success As Boolean = Await sftp.ConnectAsync(hostname,port) If (success <> True) Then Debug.WriteLine(sftp.LastErrorText) Exit Sub End If ' Authenticate with the SSH server. Chilkat SFTP supports ' both password-based authenication as well as public-key ' authentication. This example uses password authenication. success = Await sftp.AuthenticatePwAsync("myLogin","myPassword") If (success <> True) Then Debug.WriteLine(sftp.LastErrorText) Exit Sub End If ' After authenticating, the SFTP subsystem must be initialized: success = Await sftp.InitializeSftpAsync() If (success <> True) Then Debug.WriteLine(sftp.LastErrorText) Exit Sub End If ' Check to see if a file exists ' The return value is one of the following values: ' -1: Unable to check. Examine the LastErrorText to determine the reason for failure. ' 0: File does not exist. ' 1: The regular file exists. ' 2: It exists, but it is a directory. ' 3: It exists, but it is a symlink (only possible if followLinks is false) ' 4: It exists, but it is a special filesystem entry type. ' 5: It exists, but it is an unkown filesystem entry type. ' 6: It exists, but it is an socket filesystem entry type. ' 7: It exists, but it is an char device entry type. ' 8: It exists, but it is an block device entry type. ' 9: It exists, but it is an FIFO entry type. Dim followLinks As Boolean = True Dim status As Integer = Await sftp.FileExistsAsync("someDir/someFile.txt",followLinks) If (status < 0) Then Debug.WriteLine(sftp.LastErrorText) Exit Sub End If Debug.WriteLine("status = " & status) Debug.WriteLine("Success") |
© 2000-2022 Chilkat Software, Inc. All Rights Reserved.